Investigation on irradiated characteristics of Tm-doped gain fiber

Yexi Qu; Jing Liu; Zhenxing He; Ting Yu; Kedi Xie; Tieqiang Song; Mengmeng Tao; Minbo Liu; Chunlei Yu; Xisheng Ye

doi:10.1117/12.2587691

12 March 2021 Investigation on irradiated characteristics of Tm-doped gain fiber

Yexi Qu, Jing Liu, Zhenxing He, Ting Yu, Kedi Xie, Tieqiang Song, Mengmeng Tao, Minbo Liu, Chunlei Yu, Xisheng Ye

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117639D (2021) https://doi.org/10.1117/12.2587691
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

We demonstrated a stable fiber laser setup for real-time monitoring of Tm-doped gain fibers while being exposed to gamma-rays. The output power is about 10W, and the power stability of the system is ±0.25% based on the 12-hour continuous measurement. By using this laser setup and ⁶⁰Co gamma-ray irradiation source, the dose rate effect and total dose effect on the typical Tm-doped fiber specimens under water-cooling condition were experimentally studied. According to the obtained experimental results on five kinds of Tm-doped gain fiber from different R and D institutions and batches at home and abroad, the output power declines monotonously with the total irradiation dose increasing. During a dose rate range of 0.05 to 0.5 rad(Si)/s, the dose rate effects of Tm-doped gain fiber samples basically disappear, which means the differences of power degradation under different dose rate are almost invisible.

Citation Download Citation

Yexi Qu, Jing Liu, Zhenxing He, Ting Yu, Kedi Xie, Tieqiang Song, Mengmeng Tao, Minbo Liu, Chunlei Yu, and Xisheng Ye "Investigation on irradiated characteristics of Tm-doped gain fiber", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117639D (12 March 2021); https://doi.org/10.1117/12.2587691

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